A 1971 movie that stars Gene Wilder who plays the character of Willy Wonka a candy maker who is in search of an heir to his factory and fortune. He hosts a compitition by placing five golden tickets under five wonka bars.This was remade in 2005 staring Johnny Depp as Willy Wonka

Originally a book, made into two movies. The most recent one (starring Johnny Depp) is way off, but still pretty awesome and funny. It explains the history of Willy Wonka and has a better ending.
The book was full of imagination, candy, dreams and chocolate. It was missing stomach aches, cavities, and diabetes though.

But in all the movies may just be a selfless promotion for Wonka candy such as nerds, sweet Tarts, etc.

"Everything in this room is eatable, even I'm eatable. But that is called cannibalism, my dear children, and is in fact frowned upon in many societies." -Willy Wonka (In the new movie 2005)